Furnace



(No Model.)

J. ROBERTS,

FURNACE.

No. 490,774; Patented Jan. 31, 1893..

#41 ATTORNEY a mums Pcfcnspo. Photo-yawn WASH UNITED STATES PATENTOFFICE.

JACOB ROBERTS, OF CATASAUQUA, PENNSYLVANIA.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 490,774, dated January31, 1893. Application filed July 30,1892. Serial No. 441,695- (Nomodel.)

To all whom it may concern.-

Be it known that I, J ACOB ROBERTS, of Oatasauqua, county ofLehigh, andState of Pennsylvania, have invented a certain new and usefullmprovementin Furnaces, of which the following is a specification.

This invention relates to puddling furnaces and it consists essentiallyof the combination with the furnace of ports or ducts for admitting airor oxygen in the top or roof of the puddling or heating chamber andports 01' ducts for admitting air or oxygen to the rear and near thebottom of the puddling or heating chamber.

I have found it an important feature to introduce the air or oxygen atthe bottom as well as at the top of the puddling or heating chamber, asit obviates what is generally termed a cutting flame, which is liable toinjure the iron or other metal in the furnace.

In the accompanying drawings, Figure 1 is a side elevation of a-furnaceembodying my improvement. Fig. 2 is an end View. Fig. 3 is a transverselongitudinal section.

Referring by letter to the drawings, A designates the Wall or casing ofthe furnace having the fire chamber A in its front end, and the puddlingor heating chamber A rearward 0f the fire chamber. The fire chamber isprovided with the usual grate a and ash pit a, and a passage for theproducts of combustion is established between the fire chamber andpuddling or heating chamber through the opening a over the bridge wall AThe puddling or heating chamber A communicates with an uptake or fine A.

Having described the general construction of a furnace, I will nowdescribe my invention as connected therewith. 7

B designates an air or oxygen box, here shown as extending across theroof I) of the furnace. Ports I) extend through the roof b and provide apassage for air or oxygen to the chamberA The ports I), it will beobserved, enter the puddling or heating chamber some distance rearwardof the bridge wall A and direct the air or oxygen directly downward intothe puddling or heating chamber. Air or oxygen may be introduced undersuitable pressure through a pipe I) entering the box B and provided witha suitable valve 6 Other streams of air or oxygen are forcedundersuitable pressure, into the puddling or heating chamber A throughports or ducts b.v These ports or ducts b enter the chamber A throughits rear wall and near its bottom I), adjacent to the uptake. The portsor ducts b, as shown herein, may communicate with pipes or lines Bextending along the upper part of the furnace and down the rear portion,in which event the air or oxygen will be heated before it is admitted tothe chamber A The pipes or fines B will communicate with a suitablesupply apparatus through the pipe B provided with a out OK valve bHaving described my invention, what I claim, is:

1. A furnace having a fire chamber and puddling or heating chamberpartially separated by a bridge wall, ports or passages for air oroxygen communicating with the puddling or heating chamber at its top andrearward of the bridge wall, and arranged to direct the air or oxygendirectly downward into the puddling or heating chamber, and ports orpassages for air or oxygen communicating with the rear portion of saidpuddling or heating chamber near its bottom, substantially as specified.

2. A furnace having a fire chamber and puddling or heating chamber,partially separated by a bridge wall, ports or passages for air oroxygen communicating with the pud-' dling orheating chamber at its topand rearward of the bridge wall, and arranged to direct the air oroxygen directly downward into the puddling or heating chamber, ports orpassages communicating with the rear portion of said puddling or heatingchamber near its bottom and pipes or flues extending'along the walls ofthe furnace and communicating with said last named ports or passages,substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JACOB ROBERTS. Witnesses:

T. F. FREDERICK, C. O. FULLER.

